Best-Time-to-Buy-and-Sell-Stock.java

class Solution {
    public int maxProfit(int[] prices) {
        int profit = 0;
        int minElement = Integer.MAX_VALUE;
        for(int i=0; i<prices.length; i++){
            profit = Math.max(profit, prices[i]-minElement);
            minElement = Math.min(minElement, prices[i]);
        }
        return profit;
    }
}